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Rear Vented Direct Vent Models DVRS3 DVRSL DVRSR Installation Instructions & Homeowner's Manual WARNING! IF THE INFORMATION IN THIS MANUAL IS NOT FOLLOWED EXACTLY, A FIRE OR EXPLOSION MAY RESULT CAUSING PROPERTY DAMAGE,PERSONAL INJURY OR LOSS OF LIFE. FOR YOUR SAFETY FOR YOUR SAFETY WHAT TO DO IF YOU SMELL GAS: DO NOT STORE OR USE GASOLINE OR OTHER FLAMMABLE VAPOURS AND LIQUIDS IN THE VICINITY OF THIS OR ANY OTHER APPLIANCE. * * * * Do not try to light any appliance. Do not touch any electric switch Do not use any phone in your building. Immediately call your gas supplier from your neighbours phone. Follow the gas suppliers instructions. * If you cannot reach your gas supplier call the fire department. * Installation and service must be performed by a qualified installer, service agency or your gas supplier. PLEASE KEEP THIS MANUAL FOR FUTURE REFERENCE The Vermont Castings Majestic Products Company 410 Admiral Blvd., Mississauga Ontario, Canada L5T 2N1 www.majesticproducts.com / www.vermontcastings.com INSTALLER: DO NOT DISCARD THIS MANUAL - LEAVE FOR HOMEOWNER -1- 10001293 11/01 Rev. 1 TABLE OF CONTENTS Please read the Installation & Operating Instructions before using this appliance. Thank you and congratulations on your purchase of a Majestic fireplace. IMPORTANT: Read all instructions and warnings carefully before starting installation. Failure to follow these instructions may result in a possible fire hazard and will void the warranty. Installation Instructions 3 General Information ...................................................................................................... 3 Important Curing/Burn Information ............................................................................... 3 Locating your Fireplace ................................................................................................ 3 Fireplace Dimensions ................................................................................................... 4 Mantels & Mantel Chart ................................................................................................ 4 Clearance to Combustibles ........................................................................................... 5 Framing & Finishing ...................................................................................................... 5 Final Finishing ............................................................................................................... 5 Hearth ................................................................................................................. 5 Gas Specifications ........................................................................................................ 5 Gas Line Installation ..................................................................................................... 6 Remote Switch Installation ........................................................................................... 6 General Venting Information 7 Termination Clearances ................................................................................................ 8 ASSEMBLING VENT PIPES WITH CRIMPED ENDS ................................................. 9 Rear Venting Applications ..................................................................................... 9 Rear Wall Installation ............................................................................................. 9 Vertical Sidewall Applications .............................................................................. 10 How to Use The Vent Graph ................................................................................ 12 Sidwall Venting Graph ......................................................................................... 12 Vertical Sidewall Installation ................................................................................ 12 Below Grade Installations .................................................................................... 14 Vertical Through the Roof Applications ............................................................... 15 Vertical Through the Roof Installations ................................................................ 16 DVR Series Crimped End Venting Components ................................................. 17 ASSEMBLING TWIST LOCK VENT PIPES .............................................................. 18 Rear Venting Applications ................................................................................... 18 Rear Wall Installation ........................................................................................... 19 Vertical Sidewall Applications .............................................................................. 20 How to Use The Vent Graph ................................................................................ 21 Sidwall Venting Graph ......................................................................................... 21 Vertical Sidewall Installation ................................................................................ 22 Below Grade Installation ...................................................................................... 23 Vertical Through the Roof Applications ............................................................... 25 Vertical Through the Roof Installation ................................................................. 25 DVR Series Twist Lock Venting Components ..................................................... 26 Operating Instructions 27 General Glass Information .......................................................................................... 27 Louvre Removal .......................................................................................................... 27 Side Glass Removal ................................................................................................... 27 Front Glass Removal .................................................................................................. 27 Glass Cleaning ........................................................................................................... 28 Ceramic Refractory Installation ................................................................................... 28 Installation of Logs ...................................................................................................... 29 Lava Rock ............................................................................................................... 29 Ember Material Placement ......................................................................................... 29 Lighting & Operating Instructions (820 Millivolt Gas Valve) ........................................ 30 Trouble Shooting (820 Millivolt Gas Valve) ................................................................. 31 Flame Adjustment ....................................................................................................... 32 Flame Characteristics ................................................................................................. 32 Inspecting the Venting System ................................................................................... 32 Maintenance ............................................................................................................... 32 Cleaning The Standing Pilot Control System .............................................................. 32 Replacement Parts Pictorial 33 Replacement Parts List ............................................................................................... 34 Options 35 Fan Kit - FK24 ............................................................................................................. 35 Remote Control ........................................................................................................... 35 -2- IMPORTANT: PLEASE REVIEW THE FOLLOWING CAREFULLY INSTALLATION AND OPERATING INSTRUCTIONS This gas appliance should be installed by a qualified installer in accordance with local building codes and with current CAN /CGAB149 (. 1 or .2) Installation codes for Gas Burning Appliances and Equipment. or for U.S.A Installations follow local codes and/or the current National Fuel Gas Code. ANSI Z223.1. It is normal for fireplaces fabricated of steel to give off some expansion and/or contraction noises during the start up or cool down cycle. Similar noises are found with your furnace heat exchanger or car engine. FOR SAFE INSTALLATION AND OPERATION OF YOUR MAJESTIC DIRECT VENT FIREPLACE PLEASE NOTE THE FOLLOWING: It is not unusual for your Majestic gas fireplace to give off some odour the first time it is burned. This is due to the curing of the paint and any undetected oil from the manufacturing process. 1 . This fireplace gives off high temperatures and should be located out of high traffic areas and away from furniture and draperies. 2. Children and adults should be alerted to the hazards of the high surface temperatures of this fireplace and should stay away to avoid burns or ignition of clothing. Please ensure that your room is well ventilated - open all windows. 3. CAUTION: Due to high glass surface temperature children should be carefully supervised when they are in same room as your fireplace. It is recommended that you burn your Majestic fireplace for a least six (6) hours the first time you use it. If optional fan kit has been installed, place fan in the "OFF" position during this time. 4. Under no circumstances should this fireplace be modified. Parts having to be removed for servicing should be replaced prior to operating this fireplace again. 5. Installation and any repairs to this fireplace should be carried out by a qualified service person. A professional service person should be contacted to inspect this fireplace annually. Make it a practice to have all of your gas fireplaces checked annually. More frequent cleaning may be required due to excess lint and dust from carpeting, bedding material, etc. LOCATING YOUR MAJESTIC GAS FIREPLACE 6. Control compartments, burners and air passages in this fireplace should be kept clean and free of dust and lint. Make sure that the gas valve and pilot light are turned off before you attempt to clean this fireplace. 7. The venting system (chimney) of this fireplace should be checked at least once a year and if needed your venting system should be cleaned. 8. Keep the area around your fireplace clear of combustible materials, gasoline and other flammable vapour and liquids. This fireplace should not be used as a drying rack for clothing, nor should Christmas stockings or decorations be hung in the area of it. GAS FIREPLACE 9. Under no circumstances should any solid fuels (wood, coal, paper or cardboard etc.) be used in this fireplace. Fig. 1 A) Wall Installation B) Island Installation (through the wall or vertical) 10. The flow of combustion and ventilation air must not be obstructed in any way. Note (Fig. 1): ** Island (B) installation is possible as long as the horizontal portion of the vent system (X) does not exceed 20 feet (6100mm). See details in Venting Section. 11. Whether the fireplace is installed directly on carpeting, vinyl tile or any combustible material other than wood, this fireplace must be installed on a metal or wood panel extending the full width and depth of the fireplace. The minimum clearance between all glass sides and any parallel walls is 3 feet (914mm). A minimum clearance of 3" (76mm) must be maintained from any wall adjacent to one of the glass sides (Fig. 1). 12. This fireplace requires adequate ventilation and combustion air to operate properly. LOCATING YOUR INSTA-FLAME -3- FIREPLACE DIMENSIONS DVRSR DVRS3 O Q DVRSL O O BD DB BD P F A F F G M N G B I K C C E A G 22" A 38 1/2" B 34 1/4" 870mm H 24 34 3/4" 882mm I 29" C 978mm 1/2" D 21" 533mm J 2 E 33" 838mm K 4" F 17 1/4" L 438mm 3 1/2" 1/4" H J L 559mm M 3 3/4" 95mm 622mm N 2" 50mm 737mm FRAMING & FINISHING 63mm O 22" 559mm 102mm P 38 3/4" 984mm 83mm Q 34 1/2" 876mm MANTELS Depending on the width of the mantel it may be installed higher or lower from the top of the louvre opening. See drawing and chart below for proper installation height of your combustible mantel piece. Non-combustible mantels may be installed at any height above the appliance opening. When using paint or lacquer to finish the mantel, such paint or lacquer must be heat resistant to prevent discolouration. MANTEL CHART Ref. Mantel Width Ref. Height from Top Louvre V W X Y Z 10" (254 mm) 8" (203 mm) 6" (152 mm) 4" (101 mm) 2" ( 51 mm) A B C D E 12" (305 mm) 10" (254 mm) 8" (203 mm) 6" (152 mm) 4" (101 mm) Fig. 2 -4- FINAL FINISHING CLEARANCE TO COMBUSTIBLES Rear ........ 0 mm/0 inches Floor ........ 0 mm/0 inches Top .......... 0 mm/0 inches Front & Side Glass 36" (914mm) to parallel wall Side Glass to adjacent wall 3" (76mm) Non-combustible materials such as brick and tile can be extended over the outer face of the unit (Do not cover louvres or glass door). HEARTH A hearth is not mandatory but it is recommended for aesthetic purposes. We recommend a non-combustible hearth which does not obstruct louvre opening. FRAMING AND FINISHING 1. 2. 3. 4. 5. Cold climate installation recommendation: When installing this unit against a noninsulated exterior wall or chase, it is mandatory that the outer walls be insulated to conform to applicable insulation codes. Choose fireplace location. Place fireplace into position and secure to floor with 1-1/2" screws, or nails. The holes to secure the fireplace to the floor are located just behind the access door grill on the left and right hand side of the fireplace. Frame in fireplace with a header across the top. It is important to allow for finished face when setting the depth of the frame. Attach fireplace to frame using adjustable frame drywall strips(located behind access door for shipping). Preset depth to suit facing material (adjustable to 1/2" , 5/8" or 3/4" depths). Fig. 3. Screw through slotted holes in drywall strip and then screw into pre-drilled holes on fireplace side. Measure from face of fireplace to face of drywall strip to determine final depth. (Fig. 3 & 4) C A B GAS SPECIFICATIONS MODEL DRYWALL DEPTHS A B C 1/2" / 13mm 5/8" / 16mm 3/4" / 19mm GAS CONTROL MIN. INPUT B.T.U.H. DVRS3RN Natural Gas Millivolt Hi/Lo 34,000 23,800 DVRS3RP Propane Gas Millivolt Hi/Lo 34,000 25,500 DVRSL RN Natural Gas Millivolt Hi/Lo 34,000 23,800 DVRSL RP Propane Gas Millivolt Hi/Lo 34,000 25,500 DVRSR RN Natural Gas Millivolt Hi/Lo 34,000 23,800 DVRSR RP Propane Gas Millivolt Hi/Lo 34,000 25,500 The installation of your Majestic Fireplace must conform with local codes, or in the absence of local codes, with National Fuel Gas Code, ANSI Z223.1 — latest edition, or CAN 1 B1-149.1 and .2 Installation Code. (EXCEPTION: Do not derate this appliance for altitude. Maintain the manifold pressure at 3.5 inches W.C. for Natural Gas and 10 inches W.C. for LP gas.) ADJUSTABLE DRYWALL STRIP (NAILING FLANGE) SCREW POSITION FUEL MAX. INPUT B.T.U.H DVRS3 / DVRSL / DVRSR CERTIFIED TO ANSI Z21.88-1998 / CSA 2.33 - M98 Vented Gas Fireplace Heaters Fig. 3 GAS INLET & MANIFOLD PRESSURES NATURAL LP (Propane) Input Minimum 4.5" wc 11" wc Input Maximum 7" wc 13" wc 3.5" wc 10" wc Manifold Pressure Do not use this fireplace if any part of it has been under water. Immediately call a qualified service technician to inspect the fireplace and replace any part of the control which has been under water. ADJUSTABLE DRYWALL STRIP, NAILING FLANGE 1/2", 5/8" AND 3/4" SPACING Fig. 4 -5- This appliance may be installed in an aftermarket permanently located, manufactured (mobile) home, where not prohibited by local codes. REMOTE SWITCH INSTALLATION 1. Thread wire through the electrical knockout located on rear of fireplace. Do not cut wire or insulation on metal edges. Ensure that wire is protected. Run the other end to a conveniently located wall receptacle box. 2. Attach wire to switch and install switch into receptacle box. Attach cover plate to switch. 3. Connect wiring to gas valve. (Fig. 6) This appliance is only for use with the type of gas indicated on the rating plate. This appliance is not convertible for use with other gases, unless an available certified kit is used. GAS LINE INSTALLATION VALVE THERMOPILE TPTH When purging gas line one of the glass sides must be removed. TP TH The gas pipeline can be brought in through the rear right side (see Fireplace Specifications) of the appliance as well as the bottom. Knockouts are provided at convenient locations to allow for the gas pipe installation and testing of any gas connection. It is most convenient to bring the gas line in from the rear right side, as this allows fan installation or removal without disconnecting the gas line. OT PIL ON/OFF SWITCH OR MILLIVOLT THERMOSTAT The gas line connection can be made with properly tinned 3/8" copper tubing, 3/8" rigid pipe or an approved flex connector. Since some municipalities have some additional local codes, it is always best to consult your local authority and the CAN/ CGA-B149 (1. or .2) Installation code or for U.S.A Installations consult the current National Fuel Gas Code, ANSI Z223.1 Fig.6 ALTERNATE SWITCH LOCATION: Remote switch can be installed on the front side of the access door. Simply mount the switch to the switch bracket provided. Screw the bracket on either side of the frame, lining up the screws with the pre-punched holes. (Fig. 7) Always check for gas leaks with a mild soap and water solution. Do not use an open flame for leak testing. The gas control is equipped with a captured screw type pressure test point, therefore it is not necessary to provide a 1/8" test point up stream of the control. 1/2" GAS SUPPLY 1/2" X 3/8" REDUCER 3/8" NIPPLE 3/8" X 3/8" SHUT OFF VALVE 3/8" NIPPLE 3/8" UNION Typical gas supply installation 3/8" NIPPLE Fig. 7 Fig..5 When using copper or flex connector use only approved fittings. When using black iron pipe always provide a union so that gas line can be easily disconnected for burner or fan servicing. See Fig. 5. See gas specification for pressure details and ratings. The fireplace valve must not be subjected to any test pressures exceeding 1/2 psi. Isolate or disconnect this or any other gas appliance control from the gas line when pressure testing. DO NOT WIRE MILLIVOLT REMOTE WALL SWITCH FOR GAS FIREPLACE TO A 120V POWER SUPPLY. FOR LIGHTING INSTRUCTIONS PLEASE TURN TO PAGE 30. -6- There must not be any obstruction such as bushes, garden sheds, fences, decks or utility buildings within 24" from the front of the termination hood. GENERAL VENTING Your fireplace is approved to be vented either through the side wall, or vertical through the roof. - - - Do not locate termination hood where excessive snow or ice build up may occur. Be sure to check vent termination area after snow falls, and clear to prevent accidental blockage of venting system. When using snow blowers, make sure snow is not directed towards vent termination area. Only Majestic venting components specifically approved and labelled for this fireplace may be used. Minimum clearances between vent pipes and combustible materials is one (1") inch (25 mm), except where stated otherwise. Venting terminals shall not be recessed into a wall or siding. Horizontal venting must be installed on a level plane without an inclining or declining slope. Location of Vent Termination It is imperative that the vent termination be located observing the minimum clearances as shown on this page. , ,, , ,, , *Check with local codes or in absence of same with CAN/CGA B149 (.1 or .2) Installation Codes (1991) for Canada or for U.S.A. Installations follow the current National Fuel Gas Code, ANSI Z223.1. N H D V E B L C Fixed Closed Ope F B V Openable nab V B le B V Fixed Closed B V J V TERMINATION CAP I G X G M V G V A A= N K V X A X AIR SUPPLY INLET clearance above grade, veranda, porch, deck, or balcony [* 12 inches (305mm) minimum] B = clearance to window or door that may be opened C = clearance to permanently closed window [minimum 12 inches (305mm) recommended to prevent condensation on window] D = vertical clearance to ventilated soffit located above the termina/ within a horizontal distance of 24 inches (610mm) from the centre-line of the terminal [18 inches (458mm) minimum] E = clearance to unventilated soffit [12 inches (305mm) minimum F = clearance to outside comer see next page G = clearance to inside comer see next page H = * not to be installed above a meter/regulator assembly within 36 inches (914mm) horizontally from the centre-line of the regulator G GAS METER RESTRICTED AREA (TERMINATION PROHIBITED) I= clearance to service regulator vent outlet [*72 inches (1828mm) minimum] J = clearance to non-mechanical air supply inlet to building or the combustion air inlet to any other fireplace [ *12 inches (305mm) minimum] K = clearance to a mechanical air supply inlet [* 72 inches (1828mm) minimum] L = † clearance above paved side-walk or a paved driveway located on public property [*84 inches (2133mm) minimum] M = clearance under veranda, porch, deck [*12 inches (305mm) minimum ‡] N = Clearance above a roof shall extend a minimum of 24" (610mm) above the highest point when it passes through the roof surface, and any other obstruciton within a horizontal distance of 18" (450mm). † a vent shall not terminate directly above a side-walk or paved driveway which is located between two single family dwellings and serves both dwellings * ‡ only permitted if veranda, porch, deck is fully open on a minimum 2 sides beneath the floor * * as specified in CAN/CGA B149 (.1 or .2) Installation Codes (1991) for Canada or for U.S.A. Installations follow the current National Fuel Gas Code, ANSI Z223.1. Note: Local codes or regulations may require different clearances. -7- , ,, ,, ,, , , ,, Termination Clearances Termination clearances for buildings with combustible and noncombustible exteriors. Inside Corner Recessed Location Outside Corner A= Combustible 6"(152mm) Noncombustible 2"(50mm) A V B= Combustible 6"(152mm) Noncombustible 2"(50mm) V D C C E V B Balcony with perpendicular side wall Balcony with no side wall G V V G= Combustible 24"(610mm) Non-Combustible 18"(457mm) C = Maximum depth of 48" (1219mm) for recessed location. H Combustible & Non-Combustible J D = Minimum width for back wall of a recessed location. Combustible 38"(965mm) Noncombustible 24"(610mm) E = Clearance from corner in recessed location. Combustible 6"(152mm) Noncombustible 2"(50mm) H = 24"(610mm) J = 20"(508mm) Fig. 8 -8- GENERAL INFORMATION ON ASSEMBLING THE VENT PIPES WITH CRIMPED ENDS Before joining elbows and pipes apply a bead of high temperature sealant to crimped end of 4" and 7" elbow or pipe. (Fig. 9) REAR WALL INSTALLATIONS Join pipes and secure joints with three (3) sheetmetal screws. (See Fig. 9) Wipe off excess sealant. STEP 1 BEAD LOCATION 1" FROM CRIMPED END OF PIPE Locate vent opening on wall. To locate hole centre consult with appropriate fireplace specifications, page 4. Frame as shown below. 1'' Straight Out Thru the Wall Application Screw Holes Vent Opening — Combustible Wall Fig. 9 *IMPORTANT* Minimum clearance between vent pipes and combustible materials is one (1") inch (25 mm) on bottom, sides and top. (240mm) 9-3/8" Only Majestic venting components specifically approved and labelled for this fireplace may be used. 10-3/8" (255mm) REAR VENTING APPLICATIONS (framing detail) Note: It is not necessary to seal the vent pipe joints for any straight out the wall rear vent applications. Vent Opening — Noncombustible Wall Note: Vent Starter Kit Model 7DVRVT must be used in straight out the wall rear vent applications. 7-1/2" (190mm) Fig. 11 Maximum Vent Length .......................... 20" (508mm)- Fig. 10 Combustible Walls. Cut a 10-3/8"H x 9-3/8"W (265mm x 240mm) hole through the exterior wall and frame as shown. Fig. 11. REAR OF UNIT Non-Combustible Walls: Hole opening must be 7.5" (190mm) in diameter. To locate hole centre consult with appropriate fireplace specifications, page 4. 20" (508mm) STEP 2 Fig. 10 Measure wall thickness and cut adjustable zero clearance sleeve parts to proper length (MAXIMUM 12"/305mm). Adjust sleeve to maximum (10-3/8 x 9-3/8). and attach to firestop with #8 sheet metal screws (supplied). (Fig. 12) Install firestop assembly. Minimum clearance between vent pipes and combustible materials is one (1") inch (25 mm) on sides and bottom and two (2") inch (50 mm) on top. When vent termination exits through foundation less than 20" (508mm) below siding outcrop, the vent pipe must flush up with the siding. A 7DVSS must also be used. -9- #8 SCREWS(2) Maximum Length 12" (294mm) VERTICAL SIDEWALL APPLICATIONS ADJUSTABLE ZERO CLEARANCE SLEEVE #8 SCREWS(2) Vent Starter Kit 7DVSK, plus Transition Elbow 7DVRT90 must be used in Vertical Sidewall installations. The 4" pipe must be centred inside the 7" pipe coming off the 7DVRT90 transition elbow. #8 SCREWS(2) ADJUSTABLE ZERO CLEARANCE SLEEVE FIRESTOP Since it is very important that the venting system maintain its balance between the combustion air intake and the flue gas exhaust, certain limitations as to vent configurations apply and must be strictly adhered to. Fig. 12 STEP 3 The graph showing the relationship between vertical and horizontal side wall venting will help to determine the various vent lengths allowable. Fig. 19. Measure from fireplace collar to face of outside wall (add 2" for vent pipe overlap. Mark pipes and cut to length. It is very important that the two pipes are flush with the outside wall once the fireplace is in its final location. Fig. 13. Minimum clearance between vent pipes and combustible materials is one (1") inch (25 mm) on top, bottom and sides unless otherwise noted. STEP 4 When vent termination exits through foundation less than 20" below siding outcrop, the vent pipe must flush up with the siding. A 7DVSS must also be used. Slip 4" and 7" pipes onto respective flue collars. Make sure to fix to the fireplace collar the 4" pipe with three (3) screws before fixing the 7" pipe on the 7" collar. Both pipes must be on a level plane. Fig. 13. It is always best to locate the fireplace in such a way that minimizes the number of offsets and horizontal vent length. STEP 5 Guide the vent termination 4" collar into the 4" pipe then the 7" collar into the 7" pipe. Do not force the venting into position. If the pipes do not line up with the termination collars, disassemble pipes and reattach to the fireplace collar. (Fig. 13) The horizontal vent run refers to the total length of vent pipe from the flue collar of the fireplace to the face of the outer wall. Horizontal plane means no vertical rise exists on this portion of the vent assembly. STEP 6 For some installations, it may be desireable to have some amount of the horizontal vent run immediately after the fireplace. A vertical rise must be used but can be located anywhere in the vent system, to meet the perimeters identified in the venting graph. Secure fireplace to floor through floor holes and adjustable frame drywall strip (nailing flange) to frame. (See Framing & Finishing Section) The maximum horizontal vent run is 20 feet (6100mm) when the vertical vent rise is 7.5 feet (2286mm). Fig. 14 MAXIMUM 20ft. (6100mm) 48" (1220mm) 12" (305 mm) 15ft. (4572 mm) 7.5' 90" (2286mm) Fig. 13 Vertical Dimension 8ft. minimum when horizontal run is 20 ft. 7DVT90 ELBOW SIDE VIEW - 10 - VENT TERMINATION Fig. 14 When one 90º elbow is installed directly onto another off the back of the fireplace the maximum horizontal vent length is 36" (914mm). Fig. 16. VERTICAL SIDEWALL APPLICATIONS The maximum number of 90 degree elbows per side wall installation is four (4), (includes 7DVRT90 off back of unit) The maximum number of 45 degree elbows permitted per side wall installation is two (2). These elbows can be installed in either the vertical or horizontal run. The maximum number of elbow degrees in a system is 270º. (This does not include transition elbow from rear vent to vertical vent). Sample: 1 2 3 4 - 90º 45º 45º 90º Total - 270º Fig. 15 SIDE VIEW Fig. 16 For each 45 degree elbow installed in the horizontal run (while maintaining a constant horizontal plane), the length of the horizontal run MUST be reduced by 18" (457mm). This does not apply if the 45 degree elbows are installed on the vertical part of the vent system. If a 90 degree elbow is used in the horizontal vent run (level height maintained) the maximum horizontal vent length is reduced by 36 inches. Fig. 18. This does not apply if the 90 degree elbows are used to increase or redirect a vertical rise. Example: According to the vent chart the maximum horizontal vent length is 20 ft.when the vertical height is 8 ft. from fireplace base height. If one 90 degree elbow is required in the horizontal vent it must be reduced to 17 ft. 84" 2134mm 120" 3048mm Fig. 15 90º elbow=3' 7' 90" 2286mm Fig. 17 - 11 - VERTICAL SIDEWALL INSTALLATION HOW TO USE THE VENT GRAPH 1. Determine the height of the centre of the horizontal vent pipe exiting through the outer wall. Using this dimension on the Sidewall Vent Graph (Fig. 18), locate the point it intersects with the slanted graph line. 2. From the point of this intersection, draw a vertical line to the bottom of the graph. 3. Select the indicated dimension, and position the fireplace in accordance with same. EXAMPLE A: If the vertical dimension from the floor of the unit is 11 feet (3352mm) the horizontal run to the face of the outer wall must not exceed 14 feet (4267mm). STEP 1 Locate vent opening on the wall. It may be necessary to first position the fireplace and measure to obtain hole location. Depending on whether the wall is combustible or noncombustible, cut opening to size. Fig. 19. (For combustible walls first frame in opening). VERTICAL SIDEWALL APPLICATION Vent Opening — Combustible Wall EXAMPLE B: (240mm) 9-3/8" If the vertical dimension from the floor of the unit is 7 feet (2133mm), the horizontal run to the face of the outer wall must not exceed 8-1/2 feet (2590mm). 9-3/8" (240mm) VERTICAL SIDEWALL VENTING GRAPH (Dimensions in Feet) (framing detail) Vent Opening — Noncombustible Wall 30 29 28 VERTICAL DIMENSION FROM THE FLOOR OF THE UNIT TO THE CENTRE OF THE HORIZONTAL VENT PIPE 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 eg: A 11 10 9 8 7 7-1/2" (190mm) Fig. 19 COMBUSTIBLE WALLS (Fig. 19): Cut a 9-3/8"H x 9-3/8"W (240 mm x 240 mm) hole through the exterior wall and frame as shown NON-COMBUSTIBLE WALLS (Fig. 19): Hole opening must be 7.5" (190 mm) in diameter. STEP 2 Fiig. 20. Measure wall thickness and cut adjustable zero clearance sleeve parts to proper length (MAXIMUM 12"/ 305mm). Adjust sleeve to minimum (9-3/8" x 9-3/8") and attach to firestop with #8 sheet metal screws (supplied). Install firestop assembly. Zero clearance sleeve is only required for combustible walls. eg: B 6 5 4 3 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 SEE PAGE 14 FOR VENTING REQUIREMENTS FOR SNORKELS. Fig. 18 - 12 - #8 Maximum Length 12" (294mm) STEP 5 SCREWS(2) ADJUSTABLE ZERO CLEARANCE SLEEVE #8 SCREWS(2) (Fig. 23) Use the appropriate length of pipe section – telescopic or fixed – and install. The 20" (508mm) section of pipe which goes through the wall is packaged with the 7DVSK kit, and can be cut to suit if necessary. #8 SCREWS(2) ADJUSTABLE ZERO CLEARANCE SLEEVE FIRESTOP Fig. 20 Sealing vent pipe and firestop gaps with hitemperature sealant will restrict cold air being drawn in around fireplace. STEP 3 (Fig. 21) Apply a bead of high temperature sealant to the inner and outer flue collars of the fireplace and using appropriate venting component(s) attach to fireplace with three (3) screws. Follow with the installation of the inner and outer elbow. Again secure joints with three (3) sheet metal screws. Wipe off any excess high temperature sealant. BEAD OF SILICONE Fig. 23 Fig. 21 STEP 6 STEP 4 (Fig. 24) Apply high temperature sealant to 4" and 7" collars one inch away from crimped end. Guide the vent termination 4" and 7" collars into their respective vent pipes. Double check that the vent pipes overlap the collars by 2" (50mm). Secure the termination to the wall with screws provided and caulk around the wall plate to weatherproof. (Fig. 22) Measure the horizontal length requirement including a 2" (50mm)overlap, i.e. from the elbow to the outside wall finish plus 2" (or the distance required if installing a second 90º elbow). Always install horizontal venting on a level plane. Fig. 22 - 13 - BELOW GRADE INSTALLATIONS When it is not possible to meet the required vent terminal clearances of 12 inches (305mm) above grade level a model 7DVSKS vent kit is required. It allows installation depth of down to 7 inches (178mm) below grade level. The 7 inches is measured from the centre of the horizontal vent pipe as it penetrates through the wall. If venting system is installed below ground, we recommend a window well with adequate and proper drainage. INSTALLATION Ensure sidewall venting clearances are observed. The maximum horizontal run with 24" (610mm) vertical rise is 36" (914mm) from the back of the fireplace to the face of the exterior wall. See vent graph (Fig. 18) for extended horizontal run if the vertical exceeds 24" (610mm). 1. Establish vent hole through the wall. See page 12 2. Remove soil to a depth of approximately 16" (406mm) below base of snorkel. Install window well (not supplied). Refill hole with 12" (305mm) of coarse gravel leaving a clearance of approximately 4" (100mm)below snorkel. (Fig. 25) 3. Install vent system. See page 12, Steps 2 through 5. 4. Ensure a watertight seal is made around the vent pipe coming through the wall. 5. Apply high temperature sealant caulking (supplied) around the 4 and 7 inch 7DVSKS's snorkel collars. 6. Slide into vent pipe and secure to the wall. 7. Level the soil so as to maintain a 4" (100mm)clearance below snorkel (Fig. 25). Fig. 24 7DVSKS (SNORKEL) STEP 7 Support the horizontal pipes every 36 inches (914mm) with metal pipe straps. Make sure that the horizontal vent pipe is installed on a level horizontal plane. STEP 8 GROUND LEVEL A MINIMUM OF 24" (610mm) VERTICAL PIPE MUST BE INSTALLED WHEN USING THE 7DVSKS KIT 4" (100mm) MIN. CLEARANCE WINDOW WELL DRAIN Recheck the fireplace to make sure that it is levelled, properly positioned, and nailed or screwed to the floor. If applied, the fireplaces adjustable frame drywall strips (nailing flanges) should be fastened. See "Framing & Finishing. Fig. 25 DO NOT BACK FILL AROUND SNORKEL. SOIL SHOULD NOT BE LESS THAN 4" (100mm) BELOW SNORKEL. - 14 - FOUNDATION RECESS WATERTIGHT SEAL AROUND PIPE e) The maximum number of elbow degrees in system is 270º (this does not include transition elbow from rear vent to vertical vent). SNORKEL WALL SCREWS SHEET METAL SCREWS Fig. 26 If the foundation is recessed, use recess brackets (not supplied) for securing lower portion of the snorkel. Fasten brackets to wall first and then secure to snorkel with self drilling #8 x 1/2 sheet metal screws. It will be necessary to extend vent pipes out as far protruding wall face (Fig. 26). VERTICAL THROUGH THE ROOF APPLICATIONS MAXIMUM 10 FT. (3408mm) MINIMUM 8 FT. MAXIMUM 40 FT. VERTICAL RISE Fig. 28 PIPE STRAPS EVERY 3 FT. (914mm) Sample: Fig. 27 This Gas Fireplace has been approved for, a) Vertical installations up to 40 feet (12 metres) in height. Up to a 10 ft.(3048mm) horizontal vent run can be installed within the vent system using a maximum of three 90º elbows. b) Up to two 45º elbows may be used within the horizontal run. For each 45º elbow used on the horizontal level the maximum horizontal length must be reduced by 18 inches (457mm). Example: Maximum horizontal length 0 - 45º elbows 10 ft. (3048mm) 1 - 45º elbows 8.5 ft. (2590mm) 2 - 45º elbows 7 ft. (2133mm) 1 2 3 4 5 - 90º 45º 45º 45º 90º Total - 270º f) 7DVCS must be used to support offsets. (Fig. 30). This application will require that you first determine the roof pitch and use the appropriate 7DVSKV (A,B or F). (see Venting Components, page 17) c) A minimum of an 8 ft. vertical rise. d) Two sets of 45 degree elbow offsets within these vertical installations. From 0 to a maximum of 8 ft. (2438mm) a vent pipe can be used between elbows. (Fig. 30) - 15 - VERTICAL THRU THE ROOF INSTALLATION 1. Locate your fireplace. 2. Plumb to centre of the (4") 90º transition elbow (7DVRT90) from ceiling above and mark position. 3. Cut opening equal to 9-3/8" x 9-3/8" (240 mm x 240 mm). 4. Proceed to plumb for additional openings through the roof. In all cases, the opening must provide a minimum of 1 inch clearance to the vent pipe, i.e., the hole must be a minimum of 9-3/8" x 9-3/8" (240 mm x 240 mm). 5. Place firestop(s) 7DVFS into position and secure. (Fig. 33) 6. Install roof support (Fig. 31) and roof flashing making sure upper flange of flashing is below the shingles. (Fig. 34) 7. Install appropriate pipe sections until above the flashing. (See Fig. 34 for #'s 7, 8 and 9). 8. Install storm collar and seal around the pipe. (Fig. 34) 9. Add additional vent lengths for proper height. (Fig. 34) 10. Apply high temperature sealant to 4" and 7" collars of vent termination and install. MAX. 8 Ft. (2438mm) MAX. 8 Ft. (2438mm) TYPICAL 7DVCS APPLICATION MAX. 40 FEET (12.2m) MIN. 8 FEET (2.44m) Fig. 30 TYPICAL ROOF SUPPORT APPLICATION SIDE VIEW Fig. 29 Fig. 31 Attic Insulation Shield VENT TERMINATION 11" 11" STORM COLLAR JOIST ROOF 24" Min. (610mm) ROOF FLASHING ROOF SUPPORT ATTIC INSULATION Ceiling Installation 11" UPPER FLOOR 11" MAX. 40 FEET (12.2m) MIN. 8 FEET (2.44m) JOIST CEILING JOISTS JOISTS FIRESTOP SPACER ATTIC INSULATION SHIELD NAILS (4) Fig. 33 Fig. 33. If there is a room above ceiling level, firestop spacer must be installed on both the bottom and the top side of the ceiling joists. If an attic is above ceiling level a 7DVAIS (Attic Insulation Shield) must be installed. Fig. 34. The enlarged ends of the vent section always face downward. TYPICAL STRAIGHT-UP INSTALLATION Fig. 32 SHEETMETAL SCREWS (#5) — 3 PER JOINT SEALANT Clearance above a roof shall extend a minimum of 24" (610mm) above the highest point when it passes through the roof surface, and any other obstruciton within a horizontal distance of 18" (450mm). STORM COLLAR Fig. 34 - 16 - DVR SERIES CRIMPED VENTING COMPONENTS 7DVRVT - Through the wall Rear Vent Termination Starter Kit -Model 7DVSK - Sidewall Venting Starter Kit - Model 7DVSKV - Vertical Venting for 7DVSKV-A order 1/12 to 6/12 roof pitch for 7DVSKV-B order 7/12 to 12/12 roof pitch for 7DVSKV-F order flat roof Starter Kit - Model 7DVSKS -Snorkel Kit for Below Grade Installation 45º elbow kit 7DVT45 for Vertical Installation Offsets 90º transition elbow kit 7DVRT90 for Vertical Sidewall Applications or thru-the-roof. Telescopic vent sections 7DVP610 6" to 10" adjustable length 7DVP1018 - 10" to 18" adjustable length 7DVP1834 - 18" to 34" adjustable length 7DVP3466 - 34" to 66" adjustable length Pipe sections for vertical or horizontal venting Model 7DVP8" 4 per box Model 7DVP12" 4 per box Model 7DVP24" 4 per box Model 7DVP36" Model 7DVP48" Firestop Spacer Model 7DVFS Attic Insulation Shield Model 7DVAIS Vertical/Horizontal Combination Offset Support Model 7DVCS 7DVSS Siding Shield (to protect siding) - 17 - GENERAL INFORMATION ON ASSEMBLING THE TWIST LOCK VENT PIPES When using CFM Majestic twist lock pipe it is not necessary to use silicone to seal the twist lock joints. The only areas that need silicone are the collars on the fireplace, the telescoping pipe (if used) and the horizontal termination connection (when necessary). REAR VENTING APPLICATIONS Note: It is not necessary to seal the vent pipe joints for any rear vent applications. To join the pipes together, simply align the beads of the male end with the grooves of the female end and while joining the two together, twist the pipe until the flange on the female end touches the external bead on the male end. Secure the joints with three sheet metal screws. Minimum clearances between vent pipe and combustible materials are as follows: Top Sides Bottom To make easier to assembly, we suggest putting lubricant (vaseline or similar) on the male end of the twist lock pipe. - 2" (50 mm) - 1" (25 mm) - 1" (25 mm) Note: Vent Starter Kit Model 7TDVRVT must be used in rear vent applications. Maximum Vent Length ......................................... 20" - Fig. 35 ............................. 20" - With 45 Elbow Maximum Number of Elbows .............. One 45" Elbow - Fig.36 TWIST LOCK PIPE JOINT Fig. 35 Screw Holes 20" (508mm) Crimped pipe and new twist lock pipe. It is possible to use CFM Majestic 4" & 7" direct vent crimped pipe and elbows in your system, with the new CFM Majestic 4" & 7" Direct Vent Twist Lock Pipe. TOP VIEW You must use the crimped pipe first in the system off the appliance. 1. Install expanded end of crimped pipe or elbow onto the 4" & 7" collars off the fireplace with high temperature sealant and 3 screws. 2. If you wish to continue your system with your 4" & 7" crimped pipe or elbow apply high temperature sealant on crimped end of pipe at 2" in from end and fasten the next pipe with 3 sheet metal screws. 3. When you wish to continue your system with the New Twist Lock pipe or elbow, apply high temperature sealant on crimped end of pipe at 1-1/2" from end, and slip the female end of the twist lock pipe over the crimped end of the pipe and secure with 3 sheet metal screws. Continue the installation with twist lock pipe placing the female end over the male end and fastening with 3 sheet metal screws. Fig. 36 45° TOP VIEW CROSS CORNER VENT TO THE LEFT. You do not have to use high temperature sealant when using twist lock pipe between the female and male ends of the twist lock. Except on: 20" 508mm 20" 508mm 1.Adjustable lengths (telescoping joint only) 2.Crimped collar on existing fireplaces. 3.Terminations where required. - 18 - 45° TOP VIEW CROSS CORNER VENT TO THE RIGHT. STEP 4 REAR WALL INSTALLATIONS If the fireplace has crimped ends on the inner and outer flue collars, apply a bead of high temperature sealant and using the appropriate venting component(s) attach to the fireplace with three (3) screws. If the fireplace has no crimps on the end of the flue collars, the use of high temperature sealant is not necessary just secure the component with three (3) screws. Both pipes must be on a level plane. Fig. 40. Minimum clearance between vent pipes and combustible materials in one (1") inch (25 mm) on sides and bottom and two (2") inch (50 mm) on top. STEP 1 Locate vent opening on wall. Vent Opening — Combustible Wall ZERO CLEARANCE SLEEVE (240mm) 9-3/8" FIRESTOP 10-3/8" (254mm) (framing detail) Vent Opening — Noncombustible Wall TYPICAL VIEW OF CORNER INSTALLATION Fig. 39 7-1/2" (190mm) Fig. 37 STEP 5 Guide the vent termination 4" collar into the 4" pipe then the 7" collar into the 7" pipe. Do not force the venting into position. If the pipes do not line up with the termination collars, disassemble elbows or pipes and reattach to the fireplace collar. (Fig. 40) Combustible Walls. Cut a 10-3/8"H x 9-3/8"W (265mm x 240mm) hole through the exterior wall and frame as shown. Fig. 37. Non-Combustible Walls: Hole opening must be 7.5" (190mm) in diameter. To locate hole centre consult with appropriate fireplace specifications, page 4. STEP 6 If applied, the fireplaces adjustable frame drywall strips (nailing flanges) should be fastened. See "Framing & Finishing. Measure wall thickness and cut adjustable zero clearance sleeve parts to proper length (MAXIMUM 12"). Adjust sleeve to maximum (10-3/8 x 9-3/8). and attach to firestop with #8 sheet metal screws (supplied). (Fig. 38) Install firestop assembly. #8 SCREWS(2) Maximum Length 12" (294mm) FINISHED WALL ADJUSTABLE ZERO CLEARANCE SLEEVE #8 SCREWS(2) #8 SCREWS(2) ADJUSTABLE ZERO CLEARANCE SLEEVE ,, , Recheck the fireplace to make sure that it is levelled, properly positioned, and nailed or screwed to the floor. STEP 2 FIRESTOP Fig. 38 STEP 3 Measure from fireplace collar or elbow face to face of outside wall (add 1-1/2" for vent pipe overlap). Mark pipes and cut to length. It is very important that the two pipes are flush with the outside wall once the fireplace is in its final location. - 19 - VENT TERMINATION Fig. 40 VERTICAL SIDEWALL APPLICATIONS VERTICAL SIDEWALL INSTALLATIONS Since it is very important that the venting system maintain its balance between the combustion air intake and the flue gas exhaust, certain limitations as to vent configurations apply and must be strictly adhered to. The maximum number of 90 degree elbows per side wall installation is four (4), (includes 7TDVRT90 off back of unit) The maximum number of 45 degree elbows permitted per side wall installation is two (2). These elbows can be installed in either the vertical or horizontal run. The graph showing the relationship between vertical and horizontal side wall venting will help to determine the various vent lengths allowable. Fig. 45. When one 90o elbow is installed directly onto another off the back of the fireplace the maximum horizontal vent length is 36" (914mm). Fig. 42. Minimum clearance between vent pipes and combustible materials is one (1") inch (25 mm) on top, bottom and sides unless otherwise noted. , , , When vent termination exits through foundation less than 20" below siding outcrop, the vent pipe must flush up with the siding. A 7DVSS must also be used. MAXIMUM 3' (914mm) It is always best to locate the fireplace in such a way that minimizes the number of offsets and horizontal vent length. 7TDVRT90 ELBOW The horizontal vent run refers to the total length of vent pipe from the flue collar of the fireplace to the face of the outer wall. SIDE VIEW Horizontal plane means no vertical rise exists on this portion of the vent assembly. For each 45 degree elbow installed in the horizontal run (while maintaining a constant horizontal plane), the length of the horizontal run MUST be reduced by 18" (457mm). This does not apply if the 45 degree elbows are installed on the vertical part of the vent system. For some installations, it may be desirable to have some amount of the horizontal vent run immediately after the fireplace. A vertical rise must be used but can be located anywhere in the vent system, to meet the perimeters identified in the venting graph. , , , If a 90 degree elbow is used in the horizontal vent run (level height maintained) the maximum horizontal vent length is reduced by 36 inches. Fig. 43. This does not apply if the 90 degree elbows are used to increase or redirect a vertical rise. The maximum horizontal vent run is 20 feet (6100mm) when the vertical vent rise is 7.5 feet (2286mm). Fig. 41 MAXIMUM 20 ft. (6100mm) 12" (305mm) Example: According to the vent chart the maximum horizontal vent length is 20 ft.when the vertical height is 7.5 ft. from fireplace base height. If one 90 degree elbow is required in the horizontal vent it must be reduced to 17 ft. 48" (1220mm) 15 ft. (4572mm) 90" (2286mm) VERTICAL DIMENSION 7.5 ft. MINIMUM WHEN HORIZONTAL RUN IS 20 ft. 7TDVRT90 ELBOW SIDE VIEW Fig. 42 Fig. 41 - 20 - HOW TO USE THE VENT GRAPH 84" 2134mm 120" 3048mm 1. Determine the height of the centre of the horizontal vent pipe exiting through the outer wall. Using this dimension on the Sidewall Vent Graph (Fig. 45), locate the point it intersects with the slanted graph line. 2. From the point of this intersection, draw a vertical line to the bottom of the graph. 3. Select the indicated dimension, and position the fireplace in accordance with same. (See examples Fig. 43). EXAMPLE A: If the vertical dimension from the floor of the unit is 11 feet (335cm) the horizontal run to the face of the outer wall must not exceed 14 feet (427cm). o 90 elbow=3' 90" 2286mm Fig. 43 EXAMPLE B: The maximum number of elbow degrees in a system is INSERT 270 o. (This does not include transition elbow from rear vent to vertical vent.) Fig. 44 Sample: 1 2 3 4 Total - 90 o 45 o 45 o 90 o - 270 o If the vertical dimension from the floor of the unit is 7 feet (214cm), the horizontal run to the face of the outer wall must not exceed 8-1/2 feet (259cm). SIDEWALL VENTING GRAPH (Dimensions in Feet) 30 29 28 26 25 24 23 22 21 20 19 18 17 16 Fig. 44 15 14 13 12 eg: A 11 10 9 8 7 VERTICAL DIMENSION FROM THE FLOOR OF THE UNIT TO THE CENTRE OF THE HORIZONTAL VENT PIPE 27 eg: B 6 5 4 3 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Fig. 45 SEE PAGE 23 FOR VENTING REQUIREMENTS FOR SNORKELS. - 21 - VENT SIDEWALL INSTALLATION STEP 2 Fig. 49. Measure wall thickness and cut adjustable zero clearance sleeve parts to proper length (MAXIMUM 12"). Adjust sleeve to minimum (9-3/8" x 9-3/8") and attach to firestop with #8 sheet metal screws (supplied). Install STEP 2assembly. firestop *IMPORTANT* Minimum clearance between vent pipes and combustible materials is one (1") inch (25 mm) on bottom, sides and top. Vent Starter Kit 7TDVSK, plus Transition Elbow 7TDVRT90 must be used in Vertical Sidewall installations. The 4" pipe must be centred inside the 7" pipe coming off the 7TDVRT90 transition elbow. Zero clearance sleeve is only required for combustible walls. #8 Maximum Length 12" (294mm) SCREWS(2) ADJUSTABLE ZERO CLEARANCE SLEEVE #8 SCREWS(2) STEP 1 #8 SCREWS(2) Locate vent opening on the wall. It may be necessary to first position the fireplace and measure to obtain hole location. Depending on whether the wall is combustible or noncombustible, cut opening to size. Fig. 46 or 47. (For combustible walls first frame in opening. Fig. 47). Fig. 49 FIRESTOP FIRESTOP STEP 3 (Fig. 50) Apply a bead of high temperature sealant to the inner and outer flue collars of the fireplace and using appropriate venting component(s) attach to fireplace with three (3) screws. Follow with the installation of the inner and outer elbow. Again secure joints with three (3) sheet metal screws. Wipe off any excess high temperature sealant. Vent Opening — Combustible Wall (240mm) 9-3/8" 9-3/8" (240mm) Fig. 46 ADJUSTABLE ZERO CLEARANCE SLEEVE ENSURE PIPES ARE CONCENTRIC X (framing detail) Fig. 47 Vent Opening — Noncombustible Wall 7-1/2" (190mm) 7TDVRT90 , , , , , Fig. 50 BEAD OF SEALANT (IF NECESSARY) Fig. 48 STEP 4 ,, ,, ,, , ,, (Fig. 51) Measure the horizontal length requirement plus 1-1/2" overlap, i.e. from the elbow to the outside wall finish plus 1-1/2" (or the distance required if installing a second 90º elbow). COMBUSTIBLE WALLS (Fig. 46): Cut a 9-3/8"H x 9-3/8"W (240 mm x 240 mm) hole through the exterior wall and frame as shown X NON-COMBUSTIBLE WALLS (Fig. 48): Hole opening must be 7.5" (190 mm) in diameter. Always install horizontal venting on a level plane. - 22 - Fig. 51 STEP 5 Fig. 52 (Fig. 52) Use the appropriate length of pipe section – telescopic or fixed – and install. The 20" section of pipe which goes through the wall is packaged with the 7TDVSK kit, and can be cut to suit if necessary. Sealing vent pipe and firestop gaps with high temperature sealant will restrict cold air being drawn in around fireplace. STEP 6 ,, ,, ,, ,, X When it is not possible to meet the required vent terminal clearances of 12 inches (305mm) above grade level a model 7TDVSKS vent kit is recommended. It allows installation depth of down to 7 inches (178mm) below grade level. The 7 inches is measured from the centre of the horizontal vent pipe as it penetrates through the wall. ,,,, (Fig. 53) Apply high temperature sealant to 4" and 7" collars one inch away from crimped end. Guide the vent terminations 4" and 7" collars into their respective vent pipes. Double check that the vent pipes overlap the collars by 2". Secure the termination to the wall with screws provided and caulk around the wall plate to weatherproof. X STEP 7 Fig. 53 BELOW GRADE INSTALLATIONS If venting system is installed below ground, we recommend a window well with adequate and proper drainage. INSTALLATION Ensure sidewall venting clearances are observed. The maximum horizontal run with 24" vertical rise is 36" (915mm) from the back of the fireplace to the face of the exterior wall. See vent graph (Fig. 45) for extended horizontal run if the vertical exceeds 24". X Support the horizontal pipes every three (3) feet (92 cm) with metal pipe straps. Make sure that the horizontal vent pipe is installed on a level horizontal plane. 1. Establish vent hole through the wall. See page 22 2. Remove soil to a depth of approximately 16" below base of snorkel. Install window well (not supplied). Refill hole with 12" of coarse gravel leaving a clearance of approximately 4" below snorkel. (Fig. 54) 3. Install vent system. See page 22, Steps 2 through 5. 4. Ensure a watertight seal is made around the vent pipe coming through the wall. 5. Apply high temperature sealant caulking (supplied) around the 4 and 7 inch 7TDVSKS's snorkel collars. 6. Slide into vent pipe and secure to the wall. 7. Level the soil so as to maintain a 4" clearance below snorkel (Fig. 54). ,, ,, , ZERO CLEARANCE SLEEVE IF REQUIRED 7TDVSKS (SNORKEL) FIRESTOP 7TDVRT90 A MINIMUM OF 24" (608MM) VERTICAL PIPE MUST BE INSTALLED WHEN USING THE 7TDVSKS KIT. STEP 8 Recheck the fireplace to make sure that it is levelled, properly positioned, and nailed or screwed to the floor. SCREWS MINIMUM 4" CLEARANCE GROUND WINDOW WELL GRAVEL DRAIN FOUNDATION WALL If applied, the fireplaces adjustable frame drywall strips (nailing flanges) should be fastened. See "Framing & Finishing" section. 7TDVRT90 *A minimum of 24"/608mm vertical pipe must be installed when using the 7TDVSKS kit. Fig. 54 - 23 - DO NOT BACK FILL AROUND SNORKEL. SOIL SHOULD NOT BE LESS THAN 4" BELOW SNORKEL. FOUNDATION RECESS c) A minimum of an 8 ft. vertical rise. d) Two sets of 45 degree elbow offsets within these vertical installations. From 0 to a maximum of 8 ft. a vent pipe can be used between elbows. (Fig. 57) e) 7DVCS must be used to support offsets. (Fig. 58) This application will require that you first determine the roof pitch and use the appropriate 7TDVSKV (A,B or F). (see Venting Components, page 26) SNORKEL WATERTIGHT SEAL AROUND PIPE WALL SCREWS Fig. 57 SHEET METAL SCREWS Fig. 55 MAX. 8 Ft. (2438mm) If the foundation is recessed, use recess brackets (not supplied) for securing lower portion of the snorkel. Fasten brackets to wall first and then secure to snorkel with self drilling #8 x 1/2 sheet metal screws. It will be necessary to extend vent pipes out as far protruding wall face (Fig. 55). MAX. 40 FEET (12.2m) MIN. 8 FEET (2.44m) MAX. 8 Ft. (2438mm) VERTICAL THROUGH THE ROOF APPLICATIONS MAXIMUM 10 FT (3048mm) ) TYPICAL 7DVCS APPLICATION Fig. 58 TYPICAL ROOF SUPPORT APPLICATION Fig. 59 SIDE VIEW MINIMUM 8 FT./ MAXIMUM 40 FT. VERTICAL RISE VENT TERMINATION STORM COLLAR ROOF 24" Min. (610mm) ROOF FLASHING ROOF SUPPORT PIPE STRAPS EVERY 3' (914mm) ATTIC INSULATION MAX. 40 FEET (12.2m) MIN. 8 FEET (2.44m) Fig. 56 This Gas Fireplace has been approved for, a) Vertical installations up to 40 feet (12 metres) in height. Up to a 10 ft. horizontal vent run can be installed within the vent system using a maximum of three 90o elbows. b) Up to two 45o elbows may be used within the horizontal run. For each 45o elbow used on the horizontal level the maximum horizontal length must be reduced by 18 inches. Example: Maximum horizontal length 0 45o elbows 10 ft. 1 45o elbows 8.5 ft. 2 45o elbows 7 ft. CEILING JOISTS JOISTS ATTIC INSULATION SHIELD Fig. 60 TYPICAL STRAIGHT-UP INSTALLATION The minimum height of the vent above the highest point of penetration throught the roof is 2 feet. See Fig. 60. - 24 - VERTICAL THROUGH THE ROOF INSTALLATION 1. Locate your fireplace. 2. Plumb to centre of the (4") 90o transition elbow (7TDVRT90) from ceiling above and mark position. 3. Cut opening equal to 9-3/8" x 9-3/8" (240 mm x 240 mm). 4. Proceed to plumb for additional openings through the roof. In all cases, the opening must provide a minimum of 1 inch clearance to the vent pipe, i.e., the hole must be at least 9-3/8" x 9-3/8" (240 mm x 240 mm). 5. Place fireplace into position and secure to floor. 6. Place firestop(s) 7DVFS into position and secure. (Fig. 61) 7. Install roof support (Fig. 36) and roof flashing making sure upper flange of flashing is below the shingles. (Fig. 62) 8. Install appropriate pipe sections until above the flashing. (See Fig. 59 for #'s 7, 8 and 9). 9. Install storm collar and seal around the pipe. 10. Add additional vent lengths for proper height. (Fig. 62) Attic Insulation Shield 11" 11" JOIST Fig. 61 Ceiling Installation 11" UPPER FLOOR 11" JOIST FIRESTOP SPACER NAILS (4) Fig. 61 If there is a room above ceiling level, firestop spacer must be installed on both the bottom and the top side of the ceiling joists. If an attic is above ceiling level a 7DVAIS (Attic Insulation Shield) must be installed. Fig. 62 The enlarged ends of the vent section always face downward. SHEETMETAL SCREWS (#5) — 3 PER JOINT SEALANT Fig. 62 STORM COLLAR - 25 - DVR SERIES TWIST LOCK VENTING COMPONENTS 7DVRVT - Through the wall Rear Vent Termination Starter Kit -Model 7TDVSK - Sidewall Venting Starter Kit - Model 7TDVSKV - Vertical Venting for 7TDVSKV-A order 1/12 to 6/12 roof pitch for 7TDVSKV-B order 7/12 to 12/12 roof pitch for 7TDVSKV-F order flat roof Starter Kit - Model 7TDVSKS -Snorkel Kit for Below Grade Installation 45o elbow kit 7TDV45 for Vertical/Horizontal Offsets 90o transition elbow kit 7TDVRT90 for Vertical Sidewall Applications or thru-the-roof. Telescopic vent sections 7TDVP1218 12" to 18" adjustable length 7TDVP3566 35" to 64" adjustable length Pipe sections for vertical or horizontal venting Model 7TDVP8 Model 7TDVP12 Model 7TDVP24 Model 7TDVP36 Model 7TDVP48 Firestop Spacer Model 7DVFS Attic Insulation Shield Model 7DVAIS Vertical/Horizontal Combination Offset Support Model 7DVCS 7DVSS Siding Shield (to protect siding) - 26 - OPERATING INSTRUCTIONS GENERAL GLASS INFORMATION GLASS FRAME FIREPLACE FRONT Only glass approved for use in Majestic products may be used for replacement. 1 . The use of subsitute glass will void all product warranties. 2. Care must be taken to avoid breakage of the glass. 3. Under no circumstances should this appliance be operated without the glass front or with a broken glass front. Replacement of the glass (with gasket) as supplied by the manufacturer should be done by a licenced qualified service person. CLAMPS WINDOW FRAME WINDOW FRAME LOUVRE REMOVAL PULL CLAMP HOOK PUSH CLAMP HANDLE Fig. 64 FRONT GLASS REMOVAL (Fig. 63) To remove top louvre pull louvre up and then lift out. ONLY FOR SERVICE - TO CLEAN THE GLASS THERE IS NO NEED TO REMOVE IT. 2. 1 Shut off gas. 2. Let the fireplace cool if it has been operating. 3. Remove side glass (See Side Glass Removal). 4. Remove logs 5. Remove bottom refractory. (CAUTION - LOGS AND REFRACTORY COULD BE HOT). 6. Remove plate cover. 7. Remove grate assembly. 8. Remove two burner assemblies and log support. 9. Remove front upper and lower window brass by pulling off frame. 10. Undo 10/24 nuts located on side trim mounting frame. Remove trim frame. 11. Push from front side of glass bottom into fireplace while holding glass from inside fireplace till screw studs are out of trim frame. 12. Lift out glass front. 13. To reinstall glass follow the above procedure in reverse. (Fig. 65) LOUVRE 1. GLASS PANEL Fig. 63 SIDE GLASS REMOVAL 1. 2. 3. 4. 5. Shut off gas. Let the fireplace cool if it has been operating. Remove side top louvre. (See Louvre Removal) Open the side lower louvre assembly. Release the two clamps at the bottom of the window frame by pulling down on the clamp handles. 6. Lift off the glass frame as shown. 7. To reinstall glass follow the above procedure in reverse. (Fig. 64) Fig. 65 - 27 - DVRSL/DVRSR Fig. 67 GLASS CLEANING Rear and side refractory are already installed from factory. It will be necessary to clean the glass periodically. During start-up condensation, which is normal, forms on the inside of the glass and causes lint, dust and other airborne particles to cling to the glass surface. Also initial paint curing may deposit a slight film on the glass. It is therefore recommended that the glass be cleaned two or three times with a non-ammonia household cleaner and warm water (we recommend gas fireplace glass cleaner). After that the glass should be cleaned two or three times during each heating season depending on the circustances present. 1 . Unpack ceramic refractory from its carton. HANDLE REFRACTORY CAREFULLY. 2. Place bottom rear refractory manifold side onto fireplace floor and slide under rear refractory. 3. Place bottom side refractory onto fireplace floor. 4. Place bottom end refractory onto fireplace floor. Clean glass after first two weeks of operation. CERAMIC REFRACTORY INSTALLATION SIDE REFRACTORY DVRS3 (Fig. 66) REAR REFRACTORY Rear refractory is already installed from factory. 1 . Unpack ceramic refractory from its carton. HANDLE REFRACTORY CAREFULLY. 2. Place bottom refractory manifold side onto fireplace floor and slide under rear refractory. 3. Place bottom sides onto fireplace floor. 4. Place bottom end refractory onto fireplace floor. BOTTOM REFRACTORY MANIFOLD SIDE BOTTOM END REFRACTORY BOTTOM REFRACTORY MANIFOLD SIDE REAR REFRACTORY BOTTOM SIDE REFRACTORY BOTTOM SIDE REFRACTORY BOTTOM END REFRACTORY Fig. 66 - 28 - BOTTOM SIDE REFRACTORY Fig. 67 INSTALLATION OF LOGS Left and right side are defined using the manifold as reference. Facing the manifold,the left side is on your left and the right side is on your right. 1 . Remove left and right side glass. (See "Glass Removal" section) 2. Remove logs from packaging. RIGHT SIDE VIEW Fig. 70 As with all plastic - these are not toys and should be kept away from children and infants. 3. 4. 5. 6. 7. 8. 9. 10. Place main log manifold side (B18). Place main log (B19). Place left log manifold side (B20). Place left log (B21). Place right log manifold side (B22). Place right log (B23). Place crossover log (B24). Place ember material on top of burners. LAVA ROCK The lava rock provided with this fireplace must be placed on the firebox base on either side of the burner assembly. Under no circumstances should this lava rock be placed on any part of the burner assembly. Top logs must be placed properly onto notches EMBER MATERIAL PLACEMENT B21 B24 Separate the ember material into small pieces, roughly 1/2" in diameter and place onto the burner in front of the front logs. Do NOT pack down, leave in fluffy, loose conditionfor most realistic ember effect. B20 B18 B19 B23 LEFT SIDE VIEW B22 Fig. 68 Fig. 69 - 29 - LIGHTING AND OPERATING INSTRUCTIONS FOR FIREPLACES EQUIPPED WITH SIT 820 MILLIVOLT GAS VALVE FOR YOUR SAFETY READ BEFORE LIGHTING WARNING: If you do not follow these instructions exactly, a fire or explosion may result causing property damage, personal injury or loss of life. A. B. This fireplace has a pilot which must be lit manually. When lighting the pilot follow these instructions exactly. BEFORE LIGHTING smell all around the fireplace area for gas. Be sure to smell next to the floor because some gas is heavier than air and will settle on the floor. WHAT TO DO IF YOU SMELL GAS • Do not try to light any fireplace. • Do not touch any electric switch • Do not use any phone in your building • Immediately call your gas supplier from a neighbor's phone. Follow the gas supplier's instructions. • If you cannot reach your gas supplier, call the Fire Department C. Use only your hand to push in or turn the gas control knob. Never use tools. If the knob will not push in or turn by hand, do not try to repair it, call a qualified service technician. Force or attempted repair may result in a fire or explosion. D. Do not use this fireplace if any part has been under water. Immediately call a qualified service technician to inspect the fireplace and to replace any part of the control system and any gas control which has been under water. LIGHTING INSTRUCTIONS 2. 3. 4. 5. 6. STOP! Read the safety information above on this label Turn the On/Off switch to Off position or set the thermostat to lowest setting. Turn off all electric power to the fireplace. Open control access panel. Remove glass door before lighting pilot. (See Glass Door Removal). Push in gas control knob slightly and turn clockwise to "OFF". 8. 9. 10. 11. 7. 12. 13. 14. Wait fifteen (15) minutes to clear out any gas. Then smell for gas, including near the floor. If you smell gas, STOP! Follow "B" in the safety information above on this label. If you don't smell gas, go to the next step. 15. Visibly locate pilot by main burner. Turn knob on gas control counterclockwise to "PILOT". Push in control knob all the way and hold in. Immediately light the pilot by repeatedly depressing the piezo spark ignitor until a flame appears. Continue to hold the control knob in for about one (1) minute after the pilot is lit. Release knob and it will pop back up. Pilot should remain lit. If it goes out, repeat steps 5 through 8. • If knob does not pop up when released, stop and immediately call your service technician or gas supplier. • If the pilot will not stay lit after several tries, turn the gas control knob to "OFF" and call your service technician or gas supplier. Turn gas control counterclockwise to "ON" position. Replace glass door. Turn on all electric power to the fireplace. Turn the On/Off switch to On position or set thermostat to desired setting. This valve is equipped with a Hi/Lo feature. Set fireplace input as desired. TO TURN OFF GAS TO FIREPLACE 1. 3. 4. 5. - 30 - Push in gas control knob slightly and turn clockwise to "OFF". Do not force. Close control access panel. PI LOT ON 2. Turn the On/Off switch to Off position or set the thermostat to lowest setting. Turn off all electric power to the fireplace if service is to be performed. Open control access panel. OF F 1. it TROUBLE SHOOTING THE GAS CONTROL SYSTEM SIT 820 NOVA MILLIVOLT VALVE GLASS DOOR TO BE REMOVED BEFORE SERVICE WORK CHECK NO GAS SUPPLY ON • SHUTOFF VALVE OPEN • CONFIRM GAS HOOK-UP NO ▼ ▼ ▼ START LIGHT PILOT WITH PIEZO IGNITION YES • • • • ELECTRODE GAP MIN. 1/8" ELECTRODE CRACKED ELECTRODE CABLE ATTACHED PIEZO IGNITOR GENERATES SPARK • ELECTRODE CABLE NOT GROUNDED NO ▼ PILOT STAYS ON • FLAME ENGULFING THERMOCOUPLE BY 3/8" • THERMOCOUPLE ATTACHED TO VALVE • MNIMUM MILLIVOLT: OPEN CIRCUIT 18MV CLOSED CIRCUIT 5MV • VENT SAFETY SWITCH TIGHT AND NO SHORTS (FOR UNITS EQUIPPED WITH VENT SAFETY SWITCH) ▼ ▼ • REMOTE SYSTEM ON • REMOTE SYSTEM WIRE SHORTING OUT • MINIMUM MILLIVOLT: OPEN CIRCUIT 300MV CLOSED CIRCUIT 165MV • FLAME ENGULFING THERMOPILE/THERMOCOUPLE • VALVE IS IN ON POSITION YES ▼ MAIN BURNER ON NO - 31 - FLAME ADJUSTMENT MAINTENANCE For fireplaces equipped with Hi/Lo valves, flame adjustment is accomplished by rotating the Hi/Lo adjustment knob located near the centre of the gas control. Fig. 71. It is important to keep the burner and the burner compartment clean. This must be done periodically, at least once per season. The optional FK24 fan does require periodic cleaning. Check the area under the control door and in front of the fan and wipe or vacuum at least once a month during the operating season. HI Turn counterclockwise to increase flame height. Turn clockwise to lower flame height. Clean any optional brass trim using a soft cloth lightly dampened with lemon oil. Do not use water or household cleaners on any brass components. LO Fig. 71 Contact your local dealer to arrange an annual service program. FLAME CHARACTERISTICS It is important to periodically perform a visual check of the pilot and the burner flames. Compare them to the pictorials illustrated below (Fig. 72, 73 and 74). If any of the flames appear abnormal call a service person. CLEANING THE STANDING PILOT CONTROL SYSTEM The burner and control system consists of: • main burners • gas orifices • pilot assembly • thermopile • millivolt gas valve 3/8" - 1/2" Most of these components may require only an occasional checkup and cleaning and some may require adjustment. If repair is necessary, it should be performed by a qualified technician. Fig. 72 1. 2. 3. 4. LEFT SIDE VIEW Turn off pilot light at gas valve side Let fireplace cool if it has been running. Remove glass side. (see Glass Removal) Remove logs, LOGS MAY BE HOT Fig. 73 5. Vacuum burner compartment especially around orifice primary air openings. 6. Visually inspect pilot. Brush or blow away any dust or lint accumulation. 7. Reinstall logs. 8. Ignite pilot - see Operating Section of Manual. 8. Reinstall glass side. To obtain proper operation, it is imperative that the pilot and burner's flame characteristics are steady, not lifting or floating. RIGHT SIDE VIEW Fig. 74 INSPECTING THE VENTING SYSTEM Typically, the top 3/8" or 1/2" of the thermopile should be engulfed in the pilot flame. See Fig. 72. To adjust pilot burner (by a Qualified Service Representative) This appliance venting system was designed and constructed to develop a positive flow adequate to remove flue gases to the outside atmosphere. 1. Remove pilot adjustment cap. 2. Adjust pilot screw to provide properly sized flame. 3. Replace pilot adjustment cap. Any foreign objects in the venting system, except those designed specifically for the venting system, may cause spillage of flue gases. The primary air shutter is set at factory and should only be adjusted (if necessary) by a qualified service person. To inspect the venting system, make sure the main gas valve is off. Remove glass door (See Glass Door Removal). Using a flashlight, check the area above the baffle in the combustion dome. Clean if necessary. - 32 - REPLACEMENT PARTS - DVRS3 & DVRSL / DVRSR FOR FIREPLACES EQUIPPED WITH SIT 820 MILLIVOLT GAS VALVE - 33 - REPLACEMENT PARTS LIST - DVRS3/DVRSL/DVRSR DESCRIPTION PART NO. DVRS3 1. 1a. 1b. 1c. 1d. 1e. 1f. 1g. 2. 3. 4a. 4b. 5a. 5b. 6. 7a. 7b. 8a. 8b. 9a. 9b. 10a. 10b. 11. 12. 13. 14. 15. 16. 17. 18a. 18b. 19. 20. 21. 22. 23. 24. 25. 26. 27. 28. 29. 30. 31. 32. 33. 34. 35. 36. 37. 38. 39. 40. 41. 42. Log Set Complete Log - Ember Log Set Log - Ember Log Set Log - Rear Pilot Side Log - Rear Front Side Log - Side Front Log - Side Rear Log - Center Right Lava Rock Package Ember Material Package Burner Left w/tiles Nat. Burner Left w/tiles LP Burner Right w/tiles Nat. Burner Right w/tiles LP Ceramic Tile (single) Orifice Right Burner Nat Orifice Right Burner LP Orifice Left Burner Nat Orifice Left Burner LP Pilot Assembly Nat Pilot Assembly LP. Pilot Orifice Nat. Pilot Orifice LP. Pilot Pilot Tubing w/fittings Manifold Tubing w/fittings Thermocouple Thermopile Electrode Ignitor w/cable Ignitor Piezo Valve SIT 820 Nat. Valve SIT 820 LP Fan with Bracket Electrical Cord (6ft.) Fan Temperature Sensor Speed Control Speed Control Knob Glass with Gasket (Sides) Glass Gasket Frame Window (Sides) Glass with Gasket (Front) Frame Window (Front) Trim Frame Window w/mag. (PB) Trim Frame Window Small w/mag. (PB) Support Trim Front (Top/Bottom) Louvre Assembly Side Top Louvre Assembly Front Top (Small) Access Door Assembly Side Access Door Assmbly Front (Small) Access Door Hinge Ceramic Refractory Bottom Kit Ceramic Refractory Rear Wall Ceramic Refractory Side Wall Remote Switch Kit (Not Shown) Remote Switch Clamp Frame Window DVRSL/DVRSR 10001271 100001271 B18 B18 B19 B19 B20 B20 B21 B21 B22 B22 B23 B23 B24 B24 10001454 10001454 51915 51915 10001287 10001287 10001288 10001288 10001289 10001289 10001290 10001290 54330 54330 SEE RATING PLATE FOR ORIFICE SIZE SEE RATING PLATE FOR ORIFICE SIZE SEE RATING PLATE FOR ORIFICE SIZE SEE RATING PLATE FOR ORIFICE SIZE 10001199 10001199 10001200 10001200 54273 54273 54272 54272 10001298 10001298 53211 53211 57318 57318 53373 53373 51827 51827 10001297 10001297 52464 52464 52677 52677 52678 52678 54103 54103 51865 51865 51704 51704 51738 51738 51882 51882 54427 54427 57317 57317 55814 55814 55915 55915 55806 55806 57480 57480 55921 55921 55808 55808 55916 55916 55917 55917 55918 55918 10001291 10001291 52356 52356 10001275 10001275 10000363 10000363 – 10000371 53875 53875 51842 51842 54174 54174 - 34 - OPTIONS Any electrical re-wiring of this fan must be done by a qualified electrician. FAN KIT - FK24 Turn off all power before hook-up. Fan Specifications: 120 Volt 60 HZ .75 Amp. This fan does not need regular maintenance, however periodic cleaning is required. Check the area under the control door and in front of the fan and wipe or vacuum at least once a month during the operating season. Wiring Instructions: Hard (DIrect) Wire Hook-Up First connect ground wire to ground stud located on the base of either box. Black wire from supply should connect to the variable speed switch. Alternate speed switch wire connects to temperature sensor. Alternate lead from sensor connects to fan. Alternate fan lead connects back to the white supply wire. (Fig. 76). Should this fan require servicing, the power supply must be disconnected. A: SPEED CONTROL B: TEMPERATURE SENSOR C: FAN C B A Black White Ground Fig. 76 EB1 (Receptacle) Hook-Up EB1 1. Remove 3/4" knock out. Slide the electrical box back plate into the lance clips on bracket on bottom of fireplace. Fasten into place with nuts provided. Fig. 77. 2. Connect the black positive wire to brass screw (polarized side) of the receptacle. The white wire is connected to the chrome screw. The ground wire is connected to the green ground screw of the receptacle. Fit the receptacle into the electrical box. 3. Screw the cover plate provided to the electrical box. 4. Plug in the FK24 Fan Kit. Fig. 75 The FK-24 comes with the electrical cord attached. 1. Slide fan assembly from the left side into fireplace opening, line up mounting holes with screw studs on rear of fireplace and fasten with #10-24 hex nuts. 2. Install thermal sensor on bottom of firebox using #10-24 hex nuts. 3. (Option A) - Place electronic fan speed control box on bottom of fireplace base, lining up mounting holes with screw studs. Fasten fan speed control box with #10-24 hex nuts. (Option B) - The speed control can be installed in an electrical box at normal wall switch height for convenient access. 4. Remove electrical knockout on the left rear side of the fireplace. (See hard wire or receptacle hook up instructions). 5. Whether wiring directly to the fan junction box or into the EB1 (electrical receptacle box, P/N ZA1200), first ensure cable is secured using box connector. NUTS EB1 Fig. 77 REMOTE CONTROL THE FIREPLACE, WHEN INSTALLED MUST BE ELECTRICALLY CONNECTED AND GROUNDED IN ACCORDANCE WITH LOCAL CODES OR, IN THE ABSENCE OF LOCAL CODES, WITH THE CURRENT CSA C22.1 CANADIAN ELECTRICAL CODE or for U.S.A. INSTALLATIONS, FOLLOW LOCAL CODES AND THE NATIONAL ELECTRICAL CODE, ANSI/NFPA NO. 70. - 35 - MRC1 MRC2 MRC3 - IMT - On/Off Buttom Remote Control Temperature Control Remote Temperature Control with digital display and 24 hour programmable clock. Wall mounted thermostat control